For today’s edition of Dear Mark, we’ve got a three-parter. In the first section, I discuss the extremely hot (and then allowed to cool off) topic of resistant starch, explaining who might benefit from it, who might not, and where you can find further information on the subject. Second, I briefly go over how a zinc deficiency might arise and how you can address it on a Primal eating plan. The third section is bit of a surprise, featuring a very special guest writer. Since this is text and you guys can just skip ahead to see who it is, there’s admittedly very little suspense. But still. It’s a surprise that I think you’ll enjoy and appreciate.
Co-sleeping, bed sharing, or whatever else you want to call it – is an abomination of a behavior that no self-respecting mammal engages in. If you don’t believe me, consider how other mammals handle their kids. You know the old can and string phones we used to make as kids? New chimpanzee parents will string a vine between two empty coconut shell halves, placing one half in the baby chimp’s nest in the next tree over and the other half in the parents’ nest, allowing them to monitor the baby’s cries and activity during the night. If the baby wakes up, they’ll swing on over to the other tree and produce a hairy teat until the little chimp quiets down. Then it’s back to bed. The first thing female voles do after giving birth is dig a separate hole in the ground where the infants will sleep. Same with gophers. Kangaroos are famous for their pouches, which for years researchers assumed the mothers used to keep their infants safe, with easy access to the nipples. But in actuality, the kangaroo pouch is used to store shrubs, grasses, various other edible plants, and boxing gloves, as well as cover up their breasts (kangaroos are incredibly shy and modest creatures).
A few months ago, I addressed the role gender plays in how we respond to intermittent fasting. That post sparked a great discussion, and I’ve since received a fair number of emails from readers eager to learn other ways in which gender plays a role in our health and nutrition. One email in particular set me off on a round of research. So, a hat tip to you, Winifred, for giving me something to think, learn, and write about. I hope everyone finds it to be helpful.
As you may know, women and men store and metabolize fat differently from each other, and a 2008 paper (PDF) reviewed the evolutionary reasons for these differences. Here’s a summary of their findings and few other noteworthy factoids:
Many differences exist between the two sexes. We look different. We sound different. We dress differently from each other. We like different things. Different genres of movies cause men and women to cry (differently). And although society, media, and culture drive and/or inform many of our differences, some are inherent and physiologically-driven. For example, men and women have different biological equipment – both external and invisible to the naked eye – that change how we interact with and respond to our environments, our exercise, our sleep, and our eating habits. Nowhere are these gender differences more evident than in the realm of health and nutrition, and yet it seems that I’ve overlooked a big one: different sex responses to intermittent fasting.
Let’s take a look at a couple recent reader emails:
Hi again, everyone. Thanks for the comments and emails in response to my last post on menopause and hot flashes. I’m working on getting through your questions and hope to do several posts throughout the summer that speak specifically to issues that matter to women. Now that summer is here for most of the country, it seems like a good time to share a frequent reader issue this time of year.
I’m 35 and have been Primal for almost two years now. I’ve always been fairly thin, but going Primal in my eating and exercise has helped me get in better shape and build muscle. Unfortunately, I’m still plagued with some cellulite on the backs of thighs and hips. (Can I mention that I hate swimsuit season?) Why is cellulite so stubborn? Every “miracle cure” I’ve ever tried did next to nothing. Tell it to me straight – will this ever go away? Is there anything I can do? Thanks to you and Mark for everything you do with the Primal community.
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